@jcowgar
Would be interesting to see your list of what channels control what.
I believe a few of the channels may be mixed to provide the desired result.
I would caution anyone not familiar with channel mapping and mixing not attempt to change yours. While simple in theory, it can have disastrous results if you are not careful.
Yes, through this exercise, I mapped out what channels do what and what inputs affect the channels. I guess working in the channel mixer with the various curves available does not really scare me that much. I've been building models from scratch doing very complex, multiple channel input mixes for a long time. It is not something one should mess with if they do not clearly understand what is going on. In my video I am making about the subject, I try to show what is happening as we go along. It is not a video do step 1, 2 and 3, then you're done. I hope by the end, one will understand what was done and why.
Anyway, the channel mixing... now I am using Mode 2, so I am not yet sure if you're using a different mode how it will affect things. Before I'm done, I'll configure my ST16 for a different mode.
Ch1 = Throttle, J1 and B1. B1 is the Arm/Disarm switch. When pressing, it sets Ch1 output to be -25% regardless of throttle position
Ch2 = Aileron, J4
Ch3 = Elevator, J3
Ch4 = Rudder, J2
Ch5 = Flight Mode, S4
Ch6 = Return to Home, S4. This channel goes to 150% when S4 is in Home position
Ch7 = Tilt, K2
Ch8 = Pan, K1
Ch9 = Tilt Mode, S1
Ch10 = Pan Mode, S2
Ch11 = Gear, S5
Ch12 = ???, it is connected to B2 which the manual says is for future expansion
Now, interestingly, Ch13-Ch24 are grayed out. I did not find any channel that is bound to the Obs Avoidance switch. Nor does the Obs Avoidance switch change any of the outbound channels, at least according to the channel monitor. That makes me wonder how the avoidance system is enabled/disabled.
It's been quite fun learning how the ST16 works internally. The mixing capabilities are quite nice. It even has 9 point spline curves, a few mixing modes and priority levels.